Magnetic model airplane fixing structure

CN224735737UActive Publication Date: 2026-09-11SHENZHEN ALMU INNOVATION TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522295245.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-29
Publication Date
2026-09-11
Estimated Expiration
2035-10-29

AI Technical Summary

Technical Problem

上述方式在实际使用中存在拆装耗时,反复装卸易导致卡扣磨损、松动或材料破坏;且不利于低龄段儿童组装和拆卸;定位依赖人工校准,难以保证对中与安装角一致性,从而影响航模玩具的外观与稳定性;部件意外受力时易产生松脱或损伤;更换维护需工具或等待胶层固化,使用不便

Benefits of technology

上述提供的磁吸式航模固定结构,通过机翼从机身两侧沿第三方向向下插入翼槽,第一贴合面与第一承靠面相互磁吸贴合,第二贴合面与第二承靠面相互磁吸贴合,从而实现磁吸贴合:其中第一贴合面设于机翼的第三方向,第二贴合面设于机翼的第二方向的相对位移与绕第三方向的俯仰提供限位,同时对机翼在第三方向的分离提供拉脱抗力,实现不借助工具的快速定位与可逆固定。尾横翼沿第二方向插入尾横槽,第三贴合面与第三承靠面磁吸贴合并由槽壁导向,使尾横翼在第一、第三方向获得限位。尾竖翼沿第一方向插入尾竖翼,同时尾竖翼沿第三方向设置第四贴合面并与尾竖槽内的第四承靠面磁吸贴合,使尾竖翼在第二方向获得限位。在装配过程中提供自寻位、自对中的作用,降低人工校准强度与装配步骤复杂度,尤其便于低龄用户或非专业用户完成拆装与维护。该磁吸式航模固定结构针对现有技术拆装耗时、定位依赖人工、易磨损与不利于儿童操作等问题提出了系统性解决路径,在装配便利性、定位精度与使用可靠性方面获得协同提升。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224735737U_ABST
    Figure CN224735737U_ABST
Patent Text Reader

Abstract

This application proposes a magnetically attached model aircraft fixing structure, including a fuselage, two wings, a tail horizontal wing, and a tail vertical wing. The roots of the wings have right-angled portions forming a first and a second mutually perpendicular mating surface. Correspondingly, the fuselage has wing slots, each containing a first and a second bearing surface. The first mating surface and the first bearing surface are magnetically attached to each other, as are the second mating surface and the second bearing surface. The tail horizontal wing has a third mating surface. The tail of the fuselage has a tail horizontal slot extending along a second direction, with a third bearing surface. The tail horizontal wing is inserted into the tail horizontal slot, and the third mating surface and the third bearing surface are magnetically attached to each other. The tail of the fuselage has a tail vertical slot, with a fourth bearing surface. The tail vertical wing has a fourth mating surface extending along a third direction, and is inserted into the tail vertical slot, with the fourth mating surface and the fourth bearing surface magnetically attached to each other. It provides self-positioning and self-alignment during the assembly process, reducing the intensity of manual calibration and the complexity of assembly steps, making it especially convenient for young or non-professional users to complete disassembly and maintenance.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of model aircraft fixing technology, and in particular to a magnetic model aircraft fixing structure. Background Technology

[0002] Model airplanes, also known as model aircraft or toy airplanes, are typically composed of components such as fuselage, wings, tail, and vertical stabilizer. They can be divided into two main categories based on their power and control methods: static display models and flight models. To accommodate both display and personalized assembly, model airplane kits are widely available on the market, provided as individual parts for user assembly. These products emphasize the disassembly and repetitive positioning of components in their structural design to meet the needs of replacement and maintenance.

[0003] Most existing detachable model airplanes use mechanical or adhesive methods such as mortise and tenon joints, glue fixation, and rubber band / strap restraint to assemble the wings, tail, and fuselage. These methods have several drawbacks in practical use: they are time-consuming to assemble and disassemble; repeated assembly and disassembly can lead to wear, loosening, or material damage to the clips; they are also unsuitable for young children to assemble and disassemble; positioning relies on manual calibration, making it difficult to ensure alignment and consistent installation angles, thus affecting the appearance and stability of the model airplane; components are prone to loosening or damage under accidental stress; and replacement and maintenance require tools or waiting for the adhesive to cure, making them inconvenient to use.

[0004] In view of the above shortcomings, there is an urgent need to propose a magnetic model aircraft fixing structure that can achieve rapid alignment and reliable reversible connection of parts without additional tools, reduce assembly difficulty and maintenance costs, and enhance its anti-loosening ability. Utility Model Content

[0005] Based on this, it is necessary to propose a magnetic model aircraft fixing structure to address the above problems. This structure can achieve rapid alignment and reliable reversible connection of components without additional tools, reducing assembly difficulty and maintenance costs, and enhancing its resistance to loosening.

[0006] A magnetic model aircraft fixing structure, comprising: The fuselage is defined by its length as the first direction, its width as the second direction, and its vertical direction as the third direction. Two wings are connected to the sides of the fuselage. The roots of the wings are provided with right-angled sections, which form a first mating surface and a second mating surface that are perpendicular to each other. The fuselage is provided with corresponding wing grooves, and the wing grooves have a first bearing surface and a second bearing surface that correspond to the first mating surface and the second bearing surface, respectively. The first mating surface and the first bearing surface are magnetically attached to each other, and the second mating surface and the second bearing surface are magnetically attached to each other, so as to detachably fix the wings to the fuselage. The tail wing is connected to the fuselage. The tail wing has a third contact surface. The tail of the fuselage has a tail groove that runs through the second direction. The tail groove has a third support surface. The tail wing is inserted into the tail groove, and the third contact surface and the third support surface are magnetically attached to each other to detachably fix the tail wing to the fuselage. The tail vertical wing is connected to the fuselage. The tail vertical wing is provided with a tail vertical groove at the tail end of the fuselage. The tail vertical groove has a fourth bearing surface. The tail vertical wing has a fourth mating surface along a third direction. The tail vertical wing is inserted into the tail vertical groove, and the fourth mating surface and the fourth bearing surface are magnetically attached to each other to detachably fix the vertical wing to the fuselage.

[0007] In at least one embodiment of this application, when the two wings are connected to the sides of the fuselage, the top surface of the right-angle portion is coplanar and flush with the outer surface of the fuselage at the wing slot opening.

[0008] In at least one embodiment of this application, when the two wings are connected to the sides of the fuselage, the top surface of the wings is coplanar and flush with the outer surface of the fuselage at the wing slot opening.

[0009] In at least one embodiment of this application, the edge of the wing slot opening is provided with a top plane and a support surface. The support surface is parallel to the top plane and the height of the support surface is lower than the height of the top plane. When the two wings are connected to the sides of the fuselage, the top surface of the right-angled part of the wing abuts against the top plane and is coplanar and flush with it. The bottom side of the right-angled part of the wing is provided on the support surface, thereby supporting the wing in the third direction.

[0010] In at least one embodiment of this application, the tail vertical wing has an outwardly extending boss at one end, and the tail vertical wing has a groove that mates with the boss. The tail vertical wing is inserted into the tail vertical groove in a first direction, and the boss is embedded in the groove to prevent the tail vertical wing from moving in a third direction.

[0011] In at least one embodiment of this application, the tail wing has a third contact surface along a first direction, the tail wing is inserted into the tail groove, and the third contact surface and the third bearing surface are magnetically attached to each other.

[0012] In at least one embodiment of this application, the magnetic model aircraft fixing structure includes multiple counterweights. The nose portion of the fuselage is provided with a counterweight groove extending along a first direction. The counterweight groove and the counterweights are magnetically attracted to each other. The counterweights are detachably disposed in the counterweight groove. The counterweight groove is provided with multiple optional mounting positions along the first direction so that the counterweights can be selectively arranged in the first direction, thereby adjusting the center of gravity of the fuselage by adjusting the position and number of the counterweights.

[0013] In at least one embodiment of this application, a magnetic mating part is provided in the counterweight groove for magnetic attraction with the counterweight block. The magnetic mating part is oriented in a third direction. The counterweight block is detachably disposed in the counterweight groove and magnetically fixed with the magnetic mating part.

[0014] In at least one embodiment of this application, the bottom of the fuselage extends along a first direction and a second direction to form a horizontal placement surface for placement, and is located below the wing slot opening, so as to stably place the magnetic model fixing structure on the horizontal base surface.

[0015] In at least one embodiment of this application, the body is provided with a gripping groove, which is formed on the outer surfaces of both sides of the body and disposed opposite to each other, for gripping with fingers during handling and lifting.

[0016] The magnetic model aircraft fixing structure implemented in this embodiment will have at least the following beneficial effects: The aforementioned magnetic model aircraft fixing structure inserts the wing downwards into the wing slot from both sides of the fuselage along a third direction. The first contact surface and the first bearing surface magnetically adhere to each other, and the second contact surface and the second bearing surface magnetically adhere to each other, thus achieving magnetic adhesion. The first contact surface is located in the third direction of the wing, and the second contact surface is located in the second direction of the wing, providing limitation for relative displacement and pitch around the third direction, while also providing pull-out resistance against wing separation in the third direction, achieving rapid positioning and reversible fixing without tools. The tail wing is inserted into the tail slot along the second direction, and the third contact surface and the third bearing surface are magnetically adhered to each other and guided by the slot wall, thus limiting the tail wing in the first and third directions. The tail vertical wing is inserted along the first direction, and simultaneously, the tail vertical wing has a fourth contact surface along the third direction and magnetically adheres to the fourth bearing surface in the tail vertical slot, thus limiting the tail vertical wing in the second direction. The system provides self-positioning and self-alignment during assembly, reducing the intensity of manual calibration and the complexity of assembly steps, making it especially convenient for young or non-professional users to disassemble and maintain. This magnetic model aircraft fixing structure offers a systematic solution to the problems of time-consuming disassembly and assembly, reliance on manual positioning, easy wear and tear, and inconvenience for children in existing technologies, achieving synergistic improvements in assembly convenience, positioning accuracy, and reliability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] in: Figure 1 A perspective view of a magnetic model aircraft fixing structure in one embodiment; Figure 2 This is an exploded view of the magnetic model aircraft fixing structure in one embodiment; Figure 3 A perspective view of a magnetic model aircraft fixing structure in one embodiment; Figure 4 This is an exploded view of the magnetic model aircraft fixing structure in one embodiment.

[0019] Explanation of reference numerals in the attached diagram: 10. Magnetic model aircraft fixing structure; 100. Fuselage; 110. Wing slot; 112. Second bearing surface; 120. Top plane; 130. Support surface; 140. Tail transverse slot; 160. Tail vertical slot; 170. Counterweight slot; 171. Magnetic mating part; 180. Hand-grip slot; 190. Horizontal placement surface; 200. Wing; 210. Right angle part; 211. First mating surface; 212. Second mating surface; 300. Tail transverse wing; 310. Third mating surface; 400. Tail vertical wing; 410. Fourth mating surface; 420. Boss; 500. Counterweight block; x. First direction; y. Second direction; z. Third direction. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] Please refer to Figures 1 to 4In one embodiment, a magnetically attached model aircraft fixing structure 10 is provided, including a fuselage 100, two wings 200, a tail horizontal wing 300, and a tail vertical wing 400. The fuselage 100 is defined along its length as a first direction x, its width as a second direction y, and its vertical direction as a third direction z. The two wings 200 are connected to the sides of the fuselage 100. The root of each wing 200 has a right-angle portion 210, which forms a first contact surface 211 and a second contact surface 212 that are perpendicular to each other. The fuselage 100 has a corresponding wing groove 110, which has a first bearing surface (not shown in the figure) and a second bearing surface 112 that correspond to the first contact surface 211 and the second contact surface 212. The first contact surface 211 and the first bearing surface are magnetically attached to each other, and the second contact surface 212 and the second bearing surface 112 are magnetically attached to each other to fix the wing 200. The tail wing 300 is detachably fixed to the fuselage 100; the tail wing 300 is connected to the fuselage 100, and the tail wing 300 is provided with a third mating surface 310. The tail of the fuselage 100 is provided with a tail transverse groove 140 extending along the second direction y, and the tail transverse groove 140 is provided with a third bearing surface (not marked in the figure). The tail wing 300 is inserted into the tail transverse groove 140, and the third mating surface 310 and the third bearing surface are magnetically attached to each other to detach the tail wing 300. The tail wing 400 is fixed to the fuselage 100. The tail vertical wing 400 is connected to the fuselage 100. The tail vertical wing 160 is provided at the tail end of the fuselage 100. The tail vertical wing 160 is provided with a fourth bearing surface (not marked in the figure). The tail vertical wing 400 is provided with a fourth contact surface 410 along the third direction z. The tail vertical wing 400 is inserted into the tail vertical wing 160, and the fourth contact surface 410 and the fourth bearing surface are magnetically attached to each other to detachably fix the vertical wing to the fuselage 100.

[0022] Specifically, during assembly, the wing 200 is inserted downwards into the wing slot 110 from both sides of the fuselage 100 along the third direction z. The first mating surface 211 and the first bearing surface are magnetically attracted to each other, and the second mating surface 212 and the second bearing surface 112 are magnetically attracted to each other, thereby achieving magnetic attraction. The first mating surface 211 is located in the third direction z of the wing 200, and the second mating surface 212 is located in the second direction y of the wing 200. It provides limits on the relative displacement of the wing 200 in the third direction z and the pitch around the third direction z, while providing pull-out resistance to the separation of the wing 200 in the third direction z, achieving rapid positioning and reversible fixing without tools. The tail wing 300 is inserted into the tail wing slot 140 along the second direction y. The third mating surface 310 and the third bearing surface are magnetically attracted to each other and guided by the slot wall, so that the tail wing 300 is limited in the first and third directions z. The tail vertical wing 400 is inserted into the tail vertical wing 400 along the first direction x. At the same time, the tail vertical wing 400 is provided with a fourth mating surface 410 along the third direction z and magnetically mats with the fourth bearing surface in the tail vertical groove 160, so that the tail vertical wing 400 is limited in the second direction y. It provides self-positioning and self-alignment during the assembly process, reduces the intensity of manual calibration and the complexity of assembly steps, and is especially convenient for young users or non-professional users to complete disassembly, assembly and maintenance.

[0023] Through the above implementation methods, the positioning repeatability and anti-loosening capability of the detachable wing 200 are significantly improved, reducing reliability issues caused by loose screws, worn clips, or aging adhesive layers. The through-structure of the tail transverse groove 140, with the third mating surface 310 and the third bearing surface magnetically bonded together, achieves automatic centering and stable seating of the tail transverse wing 300, ensuring installation angle and symmetry, thereby improving the appearance consistency and flight stability of the model aircraft. The vertical wing is detachably fixed to the fuselage 100 through the magnetic bonding of the fourth mating surface 410 and the fourth bearing surface. All key components of the aircraft use reversible magnetic connections, eliminating the need for curing, waiting, and special tools, significantly shortening assembly and disassembly time, reducing maintenance costs, and improving user experience and safety. In summary, this magnetic model aircraft fixing structure 10 provides a systematic solution to the problems of time-consuming assembly and disassembly, manual positioning, easy wear, and difficulty in child operation associated with existing technologies, achieving synergistic improvements in assembly convenience, positioning accuracy, and reliability.

[0024] In one embodiment, when the two wings 200 are connected to the sides of the fuselage 100, the top surface of the right-angle portion 210 is coplanar and flush with the outer surface of the fuselage 100 at the opening of the wing slot 110.

[0025] Specifically, the wing 200 is inserted into the wing slot 110 downwards along the third direction z and positioned. The right-angled portion 210 at the root of the wing 200 is designed so that, after assembly, its top surface is coplanar and flush with the outer surface of the fuselage 100 at the opening of the wing slot 110. To this end, the opening of the wing slot 110 is provided with a top plane 120 that is continuous with the outer surface of the fuselage 100. When the right-angled portion 210 is inserted into place, it forms a flush reference with this top plane 120. This structure uses "flush" as a clear positioning criterion during assembly to ensure that the insertion depth of the wing 200 is constant and the installation angle and symmetry are consistent, thereby stabilizing the attitude of the wing 200 relative to the fuselage 100. At the same time, it eliminates steps and protrusions, improving the overall appearance continuity and handling safety.

[0026] In one embodiment, when the two wings 200 are connected to the sides of the fuselage 100, the top surface of the wings 200 is coplanar and flush with the outer surface of the fuselage 100 at the opening of the wing slot 110.

[0027] Specifically, after the wing 200 is inserted into the wing slot 110 along the third direction z and magnetically positioned, the top surface of the wing 200 body is designed to be coplanar and flush with the outer surface of the fuselage 100 at the opening of the wing slot 110. That is, the outer surface of the wing 200 and the outer surface of the fuselage 100 form a continuous plane as the assembly positioning reference. This flush relationship provides a visual criterion for assembly, ensuring that the symmetry and installation angle of the two wings 200 are consistent. The flush outer surface eliminates steps and protrusions, reducing the risk of snagging during loading, unloading and operation.

[0028] In one embodiment, the edge of the opening of the wing slot 110 is provided with a top plane 120 and a support surface 130. The support surface 130 is parallel to the top plane 120, and the height of the support surface 130 is lower than the height of the top plane 120. When the two wings 200 are connected to the sides of the fuselage 100, the top surface of the right angle portion 210 of the wing 200 abuts against the top plane 120 and is coplanar and flush with it. The bottom side of the right angle portion 210 of the wing 200 is provided on the support surface 130, thereby supporting the wing 200 in the third direction z.

[0029] Specifically, during assembly, the wing 200 is inserted downward along the third direction z into the wing groove 110. The top surface of the right-angle portion 210 abuts against and is flush with the top plane 120 as the positioning reference. The support surface 130 shares the weight of the wing 200 and the operating load in the third direction z. The first mating surface 211 and the first bearing surface are magnetically attached to each other, and the second mating surface 212 and the second bearing surface 112 are magnetically attached to each other, so as to detachably fix the wing 200 to the fuselage 100, which undertakes the functions of positioning and anti-pull-out rather than long-term pressure bearing, reducing the creep and fatigue risks of magnetic components and adhesive fixation; thereby comprehensively improving assembly stability, structural reliability and appearance quality.

[0030] In one embodiment, the tail vertical wing 400 has an outwardly extending boss 420 at one end, and the tail vertical wing 400 has a groove (not shown in the figure) that mates with the boss 420. The tail vertical wing 400 is inserted into the tail vertical groove 160 along the first direction x, and the boss 420 is embedded in the groove to prevent the tail vertical wing 400 from moving along the third direction z.

[0031] Specifically, during assembly, the tail vertical wing 400 is first inserted into the tail vertical groove 160 along the first direction x and the fourth mating surface 410 and the fourth bearing surface are magnetically mated. Under the geometric guidance of the groove wall, the boss 420 is then embedded into the groove, so that the tail vertical wing 400 is limited in the second direction y and the third direction z.

[0032] In one embodiment, the tail wing 300 is provided with a third contact surface 310 along the first direction x, the tail wing 300 is inserted into the tail groove 140, and the third contact surface 310 and the third bearing surface are magnetically attached to each other.

[0033] Specifically, the fuselage 100 has a tail transverse groove 140 extending along the second direction y at its tail end. The tail transverse wing 300 has a third mating surface 310 at its root along the first direction x, which is opposite to the corresponding third bearing surface within the tail transverse groove 140. During assembly, the tail transverse wing 300 is inserted into the tail transverse groove 140 along the second direction y and positioned under the geometric guidance of the groove wall. The third mating surface 310 and the third bearing surface are magnetically attached. This structure provides the tail transverse wing 300 with resistance to relative displacement and torsional support in the first direction x by the magnetic surface, and with pull-out resistance in the third direction z by the magnetic pull force and the groove step (if provided).

[0034] In one embodiment, the magnetic model aircraft fixing structure 10 includes a plurality of counterweights 500. The nose portion of the fuselage 100 is provided with a counterweight groove 170 extending along a first direction x. The counterweight groove 170 and the counterweights 500 are magnetically attracted to each other. The counterweights 500 are detachably disposed in the counterweight groove 170, and the counterweight groove 170 is provided with a plurality of optional mounting positions along the first direction x.

[0035] Specifically, the counterweight 500 is made of neodymium iron boron magnet. The counterweight 500 is detachably disposed in the counterweight groove 170, and the counterweight groove 170 has multiple optional installation positions along the first direction x. The counterweight groove 170 and the counterweight 500 are magnetically attracted to each other, so that the counterweight 500 can be selectively arranged in the first direction x, thereby adjusting the center of gravity of the body 100 by adjusting the position and number of the counterweight 500.

[0036] In one embodiment, the counterweight groove 170 is provided with a magnetic engagement part 171 for magnetic attraction with the counterweight block 500. The magnetic engagement part 171 is arranged facing the third direction z. The counterweight block 500 is detachably disposed in the counterweight groove 170 and magnetically fixed with the magnetic engagement part 171.

[0037] Specifically, the head portion of the body 100 is provided with a counterweight groove 170 extending along the first direction x. The bottom or wall of the groove forms a magnetic mating part 171 (such as embedding a permanent magnet or a ferromagnetic liner) facing the third direction z. The counterweight block 500 is placed in the counterweight groove 170 in a detachable manner and magnetically attached to the magnetic mating part 171. During assembly or adjustment, the user can move the counterweight block 500 between multiple positions along the first direction x and selectively increase or decrease the number to complete the fine adjustment of the center of gravity.

[0038] In one embodiment, the bottom of the fuselage 100 extends along the first direction x and the second direction y to form a horizontal placement surface 190 for placement, and is located below the opening of the wing slot 110.

[0039] Specifically, the bottom of the fuselage 100 extends along the first direction x and the second direction y to form a horizontal placement surface 190 for placement, so that the user can stably place the magnetic model fixing structure 10 on a horizontal base surface, such as a table or the ground.

[0040] In one embodiment, the body 100 is provided with a gripping groove 180, which is formed on both outer surfaces of the body 100 and disposed opposite to each other, for gripping with fingers during handling and lifting.

[0041] Specifically, the grip grooves 180 are formed on both outer surfaces of the fuselage 100 and are positioned opposite each other, for gripping with fingers during handling and takeoff and landing, such as gripping the grip grooves 180 to play with the magnetic model fixing structure 10.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A magnetic model aircraft fixing structure, characterized in that, include: The fuselage is defined by its length as the first direction, its width as the second direction, and its vertical direction as the third direction. Two wings are connected to the sides of the fuselage. The roots of the wings are provided with right-angled sections, which form a first mating surface and a second mating surface that are perpendicular to each other. The fuselage is provided with corresponding wing grooves, and the wing grooves have a first bearing surface and a second bearing surface that correspond to the first mating surface and the second bearing surface, respectively. The first mating surface and the first bearing surface are magnetically attached to each other, and the second mating surface and the second bearing surface are magnetically attached to each other, so as to detachably fix the wings to the fuselage. The tail wing is connected to the fuselage. The tail wing has a third contact surface. The tail of the fuselage has a tail groove that runs through the second direction. The tail groove has a third support surface. The tail wing is inserted into the tail groove, and the third contact surface and the third support surface are magnetically attached to each other to detachably fix the tail wing to the fuselage. The tail vertical wing is connected to the fuselage. The tail vertical wing is provided with a tail vertical groove at the tail end of the fuselage. The tail vertical groove has a fourth bearing surface. The tail vertical wing has a fourth mating surface along a third direction. The tail vertical wing is inserted into the tail vertical groove, and the fourth mating surface and the fourth bearing surface are magnetically attached to each other to detachably fix the vertical wing to the fuselage.

2. The magnetic model aircraft fixing structure according to claim 1, characterized in that, When the two wings are connected to the sides of the fuselage, the top surface of the right-angle section is coplanar and flush with the outer surface of the fuselage at the wing slot opening.

3. The magnetic model aircraft fixing structure according to claim 2, characterized in that, When the two wings are connected to the sides of the fuselage, the top surfaces of the wings are coplanar and flush with the outer surface of the fuselage at the wing slot opening.

4. The magnetic model aircraft fixing structure according to claim 2, characterized in that, The edge of the wing slot opening is provided with a top plane and a support surface. The support surface is parallel to the top plane and the height of the support surface is lower than the height of the top plane. When the two wings are connected to the sides of the fuselage, the top surface of the right-angle part of the wing abuts against the top plane and is flush with it. The bottom side of the right-angle part of the wing is provided on the support surface, thereby supporting the wing in the third direction.

5. The magnetic model aircraft fixing structure according to claim 1, characterized in that, The tail vertical wing has an outward protrusion at one end, and a groove that matches the protrusion is provided inside the tail vertical wing. The tail vertical wing is inserted into the tail vertical groove in the first direction, and the protrusion is embedded in the groove to prevent the tail vertical wing from moving in the third direction.

6. The magnetic model aircraft fixing structure according to claim 1, characterized in that, The tail wing has a third contact surface along the first direction.

7. The magnetic model aircraft fixing structure according to claim 1, characterized in that, The magnetic model aircraft fixing structure includes multiple counterweights. The nose of the fuselage is provided with a counterweight groove extending along a first direction. The counterweight groove and the counterweights are magnetically attracted to each other. The counterweights are detachably installed in the counterweight groove. The counterweight groove has multiple optional installation positions along the first direction so that the counterweights can be selectively arranged in the first direction. Thus, the center of gravity of the fuselage can be adjusted by adjusting the position and number of counterweights.

8. The magnetic model aircraft fixing structure according to claim 7, characterized in that, The counterweight groove is provided with a magnetic mating part for magnetic attraction with the counterweight block. The magnetic mating part is oriented in a third direction. The counterweight block is detachably installed in the counterweight groove and magnetically fixed with the magnetic mating part.

9. The magnetic model aircraft fixing structure according to claim 1, characterized in that, The bottom of the fuselage extends along the first and second directions to form a horizontal placement surface for placement, and is located below the wing slot opening, so as to stably place the magnetic model fixing structure on the horizontal base surface.

10. The magnetic model aircraft fixing structure according to claim 1, characterized in that, The machine body is equipped with hand grips, which are formed on the outer surfaces of both sides of the machine body and are positioned opposite each other, for gripping with fingers during handling and lifting.